Areas of Interest

I have a quick question as to an interpretation of the rules. In the Army book for Great Britain, the Ordinance QF 6 pound is listed as a medium AT gun (making it NOT transportable behind a jeep). It is an option for airborne forces though, but it is still a medium AT gun, but the description states that airborne units had a variation of that system with a smaller gunshield and mounted on a different carriage that allowed it to be towed behind a jeep.

I have searched the errata and faqs I could find online, but I have not found anything for the airborne specific 6pd gun being able to be towed by a jeep.

Does the fluff in the weapons description count as "rules" allowing an airborne force to tow the gun behind a jeep, or are the rules interpreted entirely on semantics, which states that jeeps cannot tow a medium AT gun?